Effects of Shape and Size of Colored Traps on Attractiveness to Irradiated, Laboratory-Strain Mexican Fruit Flies (Diptera: Tephritidae)

1992 ◽  
Vol 75 (2) ◽  
pp. 230 ◽  
Author(s):  
David C. Robacker
Keyword(s):  
Laboratory Strain ◽  
Fruit Flies ◽  
Shape And Size

Reproduction in Caribbean Fruit Flies: Comparisons between a Laboratory Strain and a Wild Strain

1977 ◽  
Vol 60 (2) ◽  
pp. 139 ◽  
Author(s):  
B. Mazomenos ◽  
J. L. Nation ◽  
W. J. Coleman ◽  
K. C. Dennis ◽  
R. Esponda
Keyword(s):  
Wild Strain ◽  
Laboratory Strain ◽  
Fruit Flies

Relative Attractiveness of Oranges and Grapefruits to Mexican Fruit Flies (Diptera: Tephritidae) in a Wind Tunnel

2003 ◽  
Vol 38 (4) ◽  
pp. 566-575 ◽  
Author(s):  
David C. Robacker ◽  
Ivich Fraser
Keyword(s):  
Wind Tunnel ◽  
Oviposition Behavior ◽  
Laboratory Strain ◽  
Fruit Flies ◽  
The Other ◽  
Anastrepha Ludens ◽  
Wind Tunnel Experiments ◽  
Relative Attractiveness

Grapefruits and sweet oranges were equally attractive to, and elicited comparable oviposition behavior from, naïve laboratory-strain female Mexican fruit flies, Anastrepha ludens (Loew), in wind-tunnel experiments. Neither fruit attracted nor elicited oviposition behavior from naïve wild females. For laboratory females, experience with either grapefruits or oranges enhanced attraction to both fruits and enhanced attraction to the experienced fruit more so than to the other, but did not affect oviposition propensity. For wild females, experience with either fruit enhanced attraction to both fruits, enhanced attraction to the experienced fruit more so than to the other, and increased oviposition propensity on both fruits. Also, wild females experienced with grapefruits oviposited more readily in grapefruits than did those experienced with oranges. Both laboratory and wild females experienced with either fruit directed less oviposition behavior toward wind-tunnel walls than did naïve females. Laboratory males were attracted to both fruits, but wild males were attracted to neither. Overall, experience with fruit had smaller effects on responses of males compared with effects on females.

The Alteration of the Pore Spaces in Sandstones

1973 ◽  
Vol 31 ◽  
pp. 210-211
Author(s):  
R. E. Ferrell ◽  
G. G. Paulson
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
The Other ◽  
Coarse Grained ◽  
Depositional Fabric ◽  
Soluble Components ◽  
Scanning Electron ◽  
Shape And Size

The pore spaces in sandstones are the result of the original depositional fabric and the degree of post-depositional alteration that the rock has experienced. The largest pore volumes are present in coarse-grained, well-sorted materials with high sphericity. The chief mechanisms which alter the shape and size of the pores are precipitation of cementing agents and the dissolution of soluble components. Each process may operate alone or in combination with the other, or there may be several generations of cementation and solution.The scanning electron microscope has ‘been used in this study to reveal the morphology of the pore spaces in a variety of moderate porosity, orthoquartzites.

Negative cross resistance of Spodoptera litura Fabricius population of tomato to newer molecule spinetoram

ENTOMON ◽  
2019 ◽  
Vol 44 (2) ◽  
pp. 127-132
Author(s):  
M. Visnupriya ◽  
N. Muthukrishnan
Keyword(s):  
Spodoptera Litura ◽  
Laboratory Strain ◽  
Field Population ◽  
Resistance Ratio ◽  
Cross Resistance ◽  
In Vivo Toxicity

Field population of Spodoptera litura from tomato ( resistant to the majority of the conventional insecticide molecules) were subjected to the in vivo toxicity of spinetoram 12 SC to assess whether cross resistance exists or not. Untreated larvae of both field and laboratory strains showed no mortality during 48 hours of feeding. After 48 hours of feeding on spinetoram 12 SC treated leaves, LC50s of field larvae were 0.28, 0.93, 3.71 and 7.11 ppm for the 2nd, 3rd, 4th and 5th instars of S. litura respectively. However, in the laboratory strain these values were 1.12, 5.86, 36.72 and 91.55 ppm for 2nd, 3rd, 4th and 5th instars of S. litura respectively. Resistance ratio was 0.25, 0.16, 0.10 and 0.08 for the 2nd instar up to the 5th instar of S. litura.

Behavioral Genetics: Investigating the genes of a complex phenotype in fruit flies

2016 ◽  
Author(s):  
Craig Stanley ◽  
Charles Hadley King ◽  
Michelle Thornton ◽  
Rob Kulathinal
Keyword(s):  
Behavioral Genetics ◽  
Fruit Flies ◽  
Complex Phenotype
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